more deeper my interests: if on cluster locensed and one cluster not - what happens if i move VMs for maintenance from licensed cluster zu unlicensed cluster?
CPU licensing is used with ESXi. Basically, you license the CPUs on your ESXi host and you get to collect logs from the ESXI host (i.e. hypervisor) as well as every VM running on that host. If you add/remove VMs there is no impact to the license. If you add/remove ESXi hosts then there is impact to the license. Does this answer your question?